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Performance Valve Springs and Retainer Kit

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Performance Valve Springs and Retainer Kit

Performance Valve Springs and Retainer Kit

Performance Valve Springs and Retainer Kit


This Part Fits:

Year Make Model Submodel Notes
2001 Chevrolet Silverado 2500 HD
2002 Chevrolet Silverado 2500 HD
2003 Chevrolet Silverado 2500 HD
2004 Chevrolet Silverado 2500 HD
2005 Chevrolet Silverado 2500 HD
2001 Chevrolet Silverado 2500 HD LS
2002 Chevrolet Silverado 2500 HD LS
2003 Chevrolet Silverado 2500 HD LS
2004 Chevrolet Silverado 2500 HD LS
2005 Chevrolet Silverado 2500 HD LS
2006 Chevrolet Silverado 2500 HD LS
2001 GMC Sierra 3500 SL
2002 GMC Sierra 3500 SL
2001 Chevrolet Silverado 3500
2002 Chevrolet Silverado 3500
2003 Chevrolet Silverado 3500
2004 Chevrolet Silverado 3500
2005 Chevrolet Silverado 3500
2001 GMC Sierra 2500 HD SLE
2002 GMC Sierra 2500 HD SLE
2003 GMC Sierra 2500 HD SLE
2004 GMC Sierra 2500 HD SLE
2005 GMC Sierra 2500 HD SLE
2006 GMC Sierra 2500 HD SLE
2007 GMC Sierra 2500 HD SLE
2008 GMC Sierra 2500 HD SLE
2009 GMC Sierra 2500 HD SLE
2010 GMC Sierra 2500 HD SLE
2011 GMC Sierra 2500 HD SLE
2012 GMC Sierra 2500 HD SLE
2013 GMC Sierra 2500 HD SLE
2014 GMC Sierra 2500 HD SLE
2015 GMC Sierra 2500 HD SLE
2016 GMC Sierra 2500 HD SLE
2001 Chevrolet Silverado 3500 LT
2002 Chevrolet Silverado 3500 LT
2003 Chevrolet Silverado 3500 LT
2004 Chevrolet Silverado 3500 LT
2005 Chevrolet Silverado 3500 LT
2006 Chevrolet Silverado 3500 LT
2001 Chevrolet Silverado 2500 HD LT
2002 Chevrolet Silverado 2500 HD LT
2003 Chevrolet Silverado 2500 HD LT
2004 Chevrolet Silverado 2500 HD LT
2005 Chevrolet Silverado 2500 HD LT
2006 Chevrolet Silverado 2500 HD LT
2007 Chevrolet Silverado 2500 HD LT
2008 Chevrolet Silverado 2500 HD LT
2009 Chevrolet Silverado 2500 HD LT
2010 Chevrolet Silverado 2500 HD LT
2011 Chevrolet Silverado 2500 HD LT
2012 Chevrolet Silverado 2500 HD LT
2013 Chevrolet Silverado 2500 HD LT
2014 Chevrolet Silverado 2500 HD LT
2015 Chevrolet Silverado 2500 HD LT
2016 Chevrolet Silverado 2500 HD LT
2001 GMC Sierra 3500 SLE
2002 GMC Sierra 3500 SLE
2003 GMC Sierra 3500 SLE
2004 GMC Sierra 3500 SLE
2005 GMC Sierra 3500 SLE
2006 GMC Sierra 3500 SLE
2001 GMC Sierra 2500 HD SLT
2002 GMC Sierra 2500 HD SLT
2003 GMC Sierra 2500 HD SLT
2004 GMC Sierra 2500 HD SLT
2005 GMC Sierra 2500 HD SLT
2006 GMC Sierra 2500 HD SLT
2007 GMC Sierra 2500 HD SLT
2008 GMC Sierra 2500 HD SLT
2009 GMC Sierra 2500 HD SLT
2010 GMC Sierra 2500 HD SLT
2011 GMC Sierra 2500 HD SLT
2012 GMC Sierra 2500 HD SLT
2013 GMC Sierra 2500 HD SLT
2014 GMC Sierra 2500 HD SLT
2015 GMC Sierra 2500 HD SLT
2016 GMC Sierra 2500 HD SLT
2001 Chevrolet Silverado 3500 LS
2002 Chevrolet Silverado 3500 LS
2003 Chevrolet Silverado 3500 LS
2004 Chevrolet Silverado 3500 LS
2005 Chevrolet Silverado 3500 LS
2006 Chevrolet Silverado 3500 LS
2001 GMC Sierra 2500 HD SL
2002 GMC Sierra 2500 HD SL
2001 GMC Sierra 3500 SLT
2002 GMC Sierra 3500 SLT
2003 GMC Sierra 3500 SLT
2004 GMC Sierra 3500 SLT
2005 GMC Sierra 3500 SLT
2006 GMC Sierra 3500 SLT
2002 GMC Sierra 3500
2003 GMC Sierra 3500
2004 GMC Sierra 3500
2005 GMC Sierra 3500
2002 GMC Sierra 2500 HD
2003 GMC Sierra 2500 HD
2004 GMC Sierra 2500 HD
2005 GMC Sierra 2500 HD
2003 GMC Sierra 2500 HD WT
2004 GMC Sierra 2500 HD WT
2005 GMC Sierra 2500 HD WT
2006 GMC Sierra 2500 HD WT
2007 GMC Sierra 2500 HD WT
2008 GMC Sierra 2500 HD WT
2009 GMC Sierra 2500 HD WT
2010 GMC Sierra 2500 HD WT
2011 GMC Sierra 2500 HD WT
2012 GMC Sierra 2500 HD WT
2013 GMC Sierra 2500 HD WT
2014 GMC Sierra 2500 HD WT
2004 Chevrolet Silverado 2500 HD WT
2005 Chevrolet Silverado 2500 HD WT
2006 Chevrolet Silverado 2500 HD WT
2007 Chevrolet Silverado 2500 HD WT
2008 Chevrolet Silverado 2500 HD WT
2009 Chevrolet Silverado 2500 HD WT
2010 Chevrolet Silverado 2500 HD WT
2011 Chevrolet Silverado 2500 HD WT
2012 Chevrolet Silverado 2500 HD WT
2013 Chevrolet Silverado 2500 HD WT
2014 Chevrolet Silverado 2500 HD WT
2015 Chevrolet Silverado 2500 HD WT
2016 Chevrolet Silverado 2500 HD WT
2004 Chevrolet Silverado 3500 WT
2004 GMC Sierra 3500 WT
2005 GMC Sierra 3500 WT
2006 GMC Sierra 3500 WT
2006 Chevrolet Silverado 3500 WT
2006 GMC Sierra 2500 HD SL
2006 GMC Sierra 3500 SL
2007 Chevrolet Silverado 2500 HD LTZ
2008 Chevrolet Silverado 2500 HD LTZ
2009 Chevrolet Silverado 2500 HD LTZ
2010 Chevrolet Silverado 2500 HD LTZ
2011 Chevrolet Silverado 2500 HD LTZ
2012 Chevrolet Silverado 2500 HD LTZ
2013 Chevrolet Silverado 2500 HD LTZ
2014 Chevrolet Silverado 2500 HD LTZ
2015 Chevrolet Silverado 2500 HD LTZ
2016 Chevrolet Silverado 2500 HD LTZ
2007 Chevrolet Silverado 3500 Classic LS
2007 Chevrolet Silverado 3500 Classic WT
2007 GMC Sierra 3500 Classic WT
2007 Chevrolet Silverado 2500 HD Classic WT
2007 GMC Sierra 3500 HD WT
2008 GMC Sierra 3500 HD WT
2009 GMC Sierra 3500 HD WT
2010 GMC Sierra 3500 HD WT
2011 GMC Sierra 3500 HD WT
2012 GMC Sierra 3500 HD WT
2013 GMC Sierra 3500 HD WT
2014 GMC Sierra 3500 HD WT
2007 Chevrolet Silverado 3500 HD WT
2008 Chevrolet Silverado 3500 HD WT
2009 Chevrolet Silverado 3500 HD WT
2010 Chevrolet Silverado 3500 HD WT
2011 Chevrolet Silverado 3500 HD WT
2012 Chevrolet Silverado 3500 HD WT
2013 Chevrolet Silverado 3500 HD WT
2014 Chevrolet Silverado 3500 HD WT
2015 Chevrolet Silverado 3500 HD WT
2016 Chevrolet Silverado 3500 HD WT
2007 GMC Sierra 3500 Classic SLT
2007 GMC Sierra 2500 HD Classic SLT
2007 Chevrolet Silverado 3500 HD LTZ
2008 Chevrolet Silverado 3500 HD LTZ
2009 Chevrolet Silverado 3500 HD LTZ
2010 Chevrolet Silverado 3500 HD LTZ
2011 Chevrolet Silverado 3500 HD LTZ
2012 Chevrolet Silverado 3500 HD LTZ
2013 Chevrolet Silverado 3500 HD LTZ
2014 Chevrolet Silverado 3500 HD LTZ
2015 Chevrolet Silverado 3500 HD LTZ
2016 Chevrolet Silverado 3500 HD LTZ
2007 GMC Sierra 3500 HD SLT
2008 GMC Sierra 3500 HD SLT
2009 GMC Sierra 3500 HD SLT
2010 GMC Sierra 3500 HD SLT
2011 GMC Sierra 3500 HD SLT
2012 GMC Sierra 3500 HD SLT
2013 GMC Sierra 3500 HD SLT
2014 GMC Sierra 3500 HD SLT
2015 GMC Sierra 3500 HD SLT
2016 GMC Sierra 3500 HD SLT
2007 GMC Sierra 3500 Classic SLE
2007 GMC Sierra 2500 HD Classic SLE
2007 GMC Sierra 3500 HD SLE
2008 GMC Sierra 3500 HD SLE
2009 GMC Sierra 3500 HD SLE
2010 GMC Sierra 3500 HD SLE
2011 GMC Sierra 3500 HD SLE
2012 GMC Sierra 3500 HD SLE
2013 GMC Sierra 3500 HD SLE
2014 GMC Sierra 3500 HD SLE
2015 GMC Sierra 3500 HD SLE
2016 GMC Sierra 3500 HD SLE
2007 Chevrolet Silverado 2500 HD Classic LS
2007 Chevrolet Silverado 3500 HD LT
2008 Chevrolet Silverado 3500 HD LT
2009 Chevrolet Silverado 3500 HD LT
2010 Chevrolet Silverado 3500 HD LT
2011 Chevrolet Silverado 3500 HD LT
2012 Chevrolet Silverado 3500 HD LT
2013 Chevrolet Silverado 3500 HD LT
2014 Chevrolet Silverado 3500 HD LT
2015 Chevrolet Silverado 3500 HD LT
2016 Chevrolet Silverado 3500 HD LT
2007 GMC Sierra 2500 HD Classic SL
2007 GMC Sierra 3500 Classic SL
2007 Chevrolet Silverado 2500 HD Classic LT
2007 Chevrolet Silverado 3500 Classic LT
2007 GMC Sierra 2500 HD Classic WT
2011 GMC Sierra 3500 HD Denali
2012 GMC Sierra 3500 HD Denali
2013 GMC Sierra 3500 HD Denali
2014 GMC Sierra 3500 HD Denali
2015 GMC Sierra 3500 HD Denali
2016 GMC Sierra 3500 HD Denali
2011 GMC Sierra 2500 HD Denali
2012 GMC Sierra 2500 HD Denali
2013 GMC Sierra 2500 HD Denali
2014 GMC Sierra 2500 HD Denali
2015 GMC Sierra 2500 HD Denali
2016 GMC Sierra 2500 HD Denali
2015 Chevrolet Silverado 3500 HD High Country
2016 Chevrolet Silverado 3500 HD High Country
2015 Chevrolet Silverado 2500 HD High Country
2016 Chevrolet Silverado 2500 HD High Country
2015 GMC Sierra 3500 HD
2016 GMC Sierra 3500 HD
2015 GMC Sierra 2500 HD
2016 GMC Sierra 2500 HD


Specifications:

Country of Origin USA
Sold As Kit
Availability Available
Universal No
About

XDP is a leading retailer, distributor, and manufacturer of top-quality OE, OER, and aftermarket diesel parts and accessories. Strategically positioned across the United States, XDP houses one of the largest and most diverse diesel-specific inventories in the industry.

For the last 20 years, XDP has proudly served the diesel community and diesel industry across North America and Canada.

We're ready to meet the needs of you and your vehicle, whether it be for work, play, towing or hauling. We know what moves you!


The XDP Performance Valve Springs and Retainer Kit XD386 are a perfect upgrade for your modified 2001-2016 GM 6.6L Duramax. Camshaft upgrades and other modifications that increase boost require more valve control.

The XDP Performance Valve Spring feature a conical design for better valve control than a standard straight spring. The conical design also allows for smaller and lighter spring retainers. Each spring undergoes a stress relief process and is computer load mapped, to ensure quality and long-term reliability.

Each spring is matched within 1 lb of seat pressure to ensure consistency. Sold as a complete set with valve springs, retainers, and locks. Each kit is backed by XDP's 1-year unlimited mileage warranty.
Features:

  • 125 Lb. Seat Pressure
  • Conical Spring Design
  • Performance Valve Spring Kit
  • Essential For Elevated Boost Levels
  • Complete Set (Springs, Locks and Retainers)

Specifications:

  • Installed Height: 1.610 inch
  • Installed Pressure: 125lbs
  • 210lbs at 1.110 inch
  • Coil Bind: 1.050 inch
$236.60

Original: $676.00

-65%
Performance Valve Springs and Retainer Kit

$676.00

$236.60

Product Information

Shipping & Returns

Description

Performance Valve Springs and Retainer Kit


This Part Fits:

Year Make Model Submodel Notes
2001 Chevrolet Silverado 2500 HD
2002 Chevrolet Silverado 2500 HD
2003 Chevrolet Silverado 2500 HD
2004 Chevrolet Silverado 2500 HD
2005 Chevrolet Silverado 2500 HD
2001 Chevrolet Silverado 2500 HD LS
2002 Chevrolet Silverado 2500 HD LS
2003 Chevrolet Silverado 2500 HD LS
2004 Chevrolet Silverado 2500 HD LS
2005 Chevrolet Silverado 2500 HD LS
2006 Chevrolet Silverado 2500 HD LS
2001 GMC Sierra 3500 SL
2002 GMC Sierra 3500 SL
2001 Chevrolet Silverado 3500
2002 Chevrolet Silverado 3500
2003 Chevrolet Silverado 3500
2004 Chevrolet Silverado 3500
2005 Chevrolet Silverado 3500
2001 GMC Sierra 2500 HD SLE
2002 GMC Sierra 2500 HD SLE
2003 GMC Sierra 2500 HD SLE
2004 GMC Sierra 2500 HD SLE
2005 GMC Sierra 2500 HD SLE
2006 GMC Sierra 2500 HD SLE
2007 GMC Sierra 2500 HD SLE
2008 GMC Sierra 2500 HD SLE
2009 GMC Sierra 2500 HD SLE
2010 GMC Sierra 2500 HD SLE
2011 GMC Sierra 2500 HD SLE
2012 GMC Sierra 2500 HD SLE
2013 GMC Sierra 2500 HD SLE
2014 GMC Sierra 2500 HD SLE
2015 GMC Sierra 2500 HD SLE
2016 GMC Sierra 2500 HD SLE
2001 Chevrolet Silverado 3500 LT
2002 Chevrolet Silverado 3500 LT
2003 Chevrolet Silverado 3500 LT
2004 Chevrolet Silverado 3500 LT
2005 Chevrolet Silverado 3500 LT
2006 Chevrolet Silverado 3500 LT
2001 Chevrolet Silverado 2500 HD LT
2002 Chevrolet Silverado 2500 HD LT
2003 Chevrolet Silverado 2500 HD LT
2004 Chevrolet Silverado 2500 HD LT
2005 Chevrolet Silverado 2500 HD LT
2006 Chevrolet Silverado 2500 HD LT
2007 Chevrolet Silverado 2500 HD LT
2008 Chevrolet Silverado 2500 HD LT
2009 Chevrolet Silverado 2500 HD LT
2010 Chevrolet Silverado 2500 HD LT
2011 Chevrolet Silverado 2500 HD LT
2012 Chevrolet Silverado 2500 HD LT
2013 Chevrolet Silverado 2500 HD LT
2014 Chevrolet Silverado 2500 HD LT
2015 Chevrolet Silverado 2500 HD LT
2016 Chevrolet Silverado 2500 HD LT
2001 GMC Sierra 3500 SLE
2002 GMC Sierra 3500 SLE
2003 GMC Sierra 3500 SLE
2004 GMC Sierra 3500 SLE
2005 GMC Sierra 3500 SLE
2006 GMC Sierra 3500 SLE
2001 GMC Sierra 2500 HD SLT
2002 GMC Sierra 2500 HD SLT
2003 GMC Sierra 2500 HD SLT
2004 GMC Sierra 2500 HD SLT
2005 GMC Sierra 2500 HD SLT
2006 GMC Sierra 2500 HD SLT
2007 GMC Sierra 2500 HD SLT
2008 GMC Sierra 2500 HD SLT
2009 GMC Sierra 2500 HD SLT
2010 GMC Sierra 2500 HD SLT
2011 GMC Sierra 2500 HD SLT
2012 GMC Sierra 2500 HD SLT
2013 GMC Sierra 2500 HD SLT
2014 GMC Sierra 2500 HD SLT
2015 GMC Sierra 2500 HD SLT
2016 GMC Sierra 2500 HD SLT
2001 Chevrolet Silverado 3500 LS
2002 Chevrolet Silverado 3500 LS
2003 Chevrolet Silverado 3500 LS
2004 Chevrolet Silverado 3500 LS
2005 Chevrolet Silverado 3500 LS
2006 Chevrolet Silverado 3500 LS
2001 GMC Sierra 2500 HD SL
2002 GMC Sierra 2500 HD SL
2001 GMC Sierra 3500 SLT
2002 GMC Sierra 3500 SLT
2003 GMC Sierra 3500 SLT
2004 GMC Sierra 3500 SLT
2005 GMC Sierra 3500 SLT
2006 GMC Sierra 3500 SLT
2002 GMC Sierra 3500
2003 GMC Sierra 3500
2004 GMC Sierra 3500
2005 GMC Sierra 3500
2002 GMC Sierra 2500 HD
2003 GMC Sierra 2500 HD
2004 GMC Sierra 2500 HD
2005 GMC Sierra 2500 HD
2003 GMC Sierra 2500 HD WT
2004 GMC Sierra 2500 HD WT
2005 GMC Sierra 2500 HD WT
2006 GMC Sierra 2500 HD WT
2007 GMC Sierra 2500 HD WT
2008 GMC Sierra 2500 HD WT
2009 GMC Sierra 2500 HD WT
2010 GMC Sierra 2500 HD WT
2011 GMC Sierra 2500 HD WT
2012 GMC Sierra 2500 HD WT
2013 GMC Sierra 2500 HD WT
2014 GMC Sierra 2500 HD WT
2004 Chevrolet Silverado 2500 HD WT
2005 Chevrolet Silverado 2500 HD WT
2006 Chevrolet Silverado 2500 HD WT
2007 Chevrolet Silverado 2500 HD WT
2008 Chevrolet Silverado 2500 HD WT
2009 Chevrolet Silverado 2500 HD WT
2010 Chevrolet Silverado 2500 HD WT
2011 Chevrolet Silverado 2500 HD WT
2012 Chevrolet Silverado 2500 HD WT
2013 Chevrolet Silverado 2500 HD WT
2014 Chevrolet Silverado 2500 HD WT
2015 Chevrolet Silverado 2500 HD WT
2016 Chevrolet Silverado 2500 HD WT
2004 Chevrolet Silverado 3500 WT
2004 GMC Sierra 3500 WT
2005 GMC Sierra 3500 WT
2006 GMC Sierra 3500 WT
2006 Chevrolet Silverado 3500 WT
2006 GMC Sierra 2500 HD SL
2006 GMC Sierra 3500 SL
2007 Chevrolet Silverado 2500 HD LTZ
2008 Chevrolet Silverado 2500 HD LTZ
2009 Chevrolet Silverado 2500 HD LTZ
2010 Chevrolet Silverado 2500 HD LTZ
2011 Chevrolet Silverado 2500 HD LTZ
2012 Chevrolet Silverado 2500 HD LTZ
2013 Chevrolet Silverado 2500 HD LTZ
2014 Chevrolet Silverado 2500 HD LTZ
2015 Chevrolet Silverado 2500 HD LTZ
2016 Chevrolet Silverado 2500 HD LTZ
2007 Chevrolet Silverado 3500 Classic LS
2007 Chevrolet Silverado 3500 Classic WT
2007 GMC Sierra 3500 Classic WT
2007 Chevrolet Silverado 2500 HD Classic WT
2007 GMC Sierra 3500 HD WT
2008 GMC Sierra 3500 HD WT
2009 GMC Sierra 3500 HD WT
2010 GMC Sierra 3500 HD WT
2011 GMC Sierra 3500 HD WT
2012 GMC Sierra 3500 HD WT
2013 GMC Sierra 3500 HD WT
2014 GMC Sierra 3500 HD WT
2007 Chevrolet Silverado 3500 HD WT
2008 Chevrolet Silverado 3500 HD WT
2009 Chevrolet Silverado 3500 HD WT
2010 Chevrolet Silverado 3500 HD WT
2011 Chevrolet Silverado 3500 HD WT
2012 Chevrolet Silverado 3500 HD WT
2013 Chevrolet Silverado 3500 HD WT
2014 Chevrolet Silverado 3500 HD WT
2015 Chevrolet Silverado 3500 HD WT
2016 Chevrolet Silverado 3500 HD WT
2007 GMC Sierra 3500 Classic SLT
2007 GMC Sierra 2500 HD Classic SLT
2007 Chevrolet Silverado 3500 HD LTZ
2008 Chevrolet Silverado 3500 HD LTZ
2009 Chevrolet Silverado 3500 HD LTZ
2010 Chevrolet Silverado 3500 HD LTZ
2011 Chevrolet Silverado 3500 HD LTZ
2012 Chevrolet Silverado 3500 HD LTZ
2013 Chevrolet Silverado 3500 HD LTZ
2014 Chevrolet Silverado 3500 HD LTZ
2015 Chevrolet Silverado 3500 HD LTZ
2016 Chevrolet Silverado 3500 HD LTZ
2007 GMC Sierra 3500 HD SLT
2008 GMC Sierra 3500 HD SLT
2009 GMC Sierra 3500 HD SLT
2010 GMC Sierra 3500 HD SLT
2011 GMC Sierra 3500 HD SLT
2012 GMC Sierra 3500 HD SLT
2013 GMC Sierra 3500 HD SLT
2014 GMC Sierra 3500 HD SLT
2015 GMC Sierra 3500 HD SLT
2016 GMC Sierra 3500 HD SLT
2007 GMC Sierra 3500 Classic SLE
2007 GMC Sierra 2500 HD Classic SLE
2007 GMC Sierra 3500 HD SLE
2008 GMC Sierra 3500 HD SLE
2009 GMC Sierra 3500 HD SLE
2010 GMC Sierra 3500 HD SLE
2011 GMC Sierra 3500 HD SLE
2012 GMC Sierra 3500 HD SLE
2013 GMC Sierra 3500 HD SLE
2014 GMC Sierra 3500 HD SLE
2015 GMC Sierra 3500 HD SLE
2016 GMC Sierra 3500 HD SLE
2007 Chevrolet Silverado 2500 HD Classic LS
2007 Chevrolet Silverado 3500 HD LT
2008 Chevrolet Silverado 3500 HD LT
2009 Chevrolet Silverado 3500 HD LT
2010 Chevrolet Silverado 3500 HD LT
2011 Chevrolet Silverado 3500 HD LT
2012 Chevrolet Silverado 3500 HD LT
2013 Chevrolet Silverado 3500 HD LT
2014 Chevrolet Silverado 3500 HD LT
2015 Chevrolet Silverado 3500 HD LT
2016 Chevrolet Silverado 3500 HD LT
2007 GMC Sierra 2500 HD Classic SL
2007 GMC Sierra 3500 Classic SL
2007 Chevrolet Silverado 2500 HD Classic LT
2007 Chevrolet Silverado 3500 Classic LT
2007 GMC Sierra 2500 HD Classic WT
2011 GMC Sierra 3500 HD Denali
2012 GMC Sierra 3500 HD Denali
2013 GMC Sierra 3500 HD Denali
2014 GMC Sierra 3500 HD Denali
2015 GMC Sierra 3500 HD Denali
2016 GMC Sierra 3500 HD Denali
2011 GMC Sierra 2500 HD Denali
2012 GMC Sierra 2500 HD Denali
2013 GMC Sierra 2500 HD Denali
2014 GMC Sierra 2500 HD Denali
2015 GMC Sierra 2500 HD Denali
2016 GMC Sierra 2500 HD Denali
2015 Chevrolet Silverado 3500 HD High Country
2016 Chevrolet Silverado 3500 HD High Country
2015 Chevrolet Silverado 2500 HD High Country
2016 Chevrolet Silverado 2500 HD High Country
2015 GMC Sierra 3500 HD
2016 GMC Sierra 3500 HD
2015 GMC Sierra 2500 HD
2016 GMC Sierra 2500 HD


Specifications:

Country of Origin USA
Sold As Kit
Availability Available
Universal No
About

XDP is a leading retailer, distributor, and manufacturer of top-quality OE, OER, and aftermarket diesel parts and accessories. Strategically positioned across the United States, XDP houses one of the largest and most diverse diesel-specific inventories in the industry.

For the last 20 years, XDP has proudly served the diesel community and diesel industry across North America and Canada.

We're ready to meet the needs of you and your vehicle, whether it be for work, play, towing or hauling. We know what moves you!


The XDP Performance Valve Springs and Retainer Kit XD386 are a perfect upgrade for your modified 2001-2016 GM 6.6L Duramax. Camshaft upgrades and other modifications that increase boost require more valve control.

The XDP Performance Valve Spring feature a conical design for better valve control than a standard straight spring. The conical design also allows for smaller and lighter spring retainers. Each spring undergoes a stress relief process and is computer load mapped, to ensure quality and long-term reliability.

Each spring is matched within 1 lb of seat pressure to ensure consistency. Sold as a complete set with valve springs, retainers, and locks. Each kit is backed by XDP's 1-year unlimited mileage warranty.
Features:

  • 125 Lb. Seat Pressure
  • Conical Spring Design
  • Performance Valve Spring Kit
  • Essential For Elevated Boost Levels
  • Complete Set (Springs, Locks and Retainers)

Specifications:

  • Installed Height: 1.610 inch
  • Installed Pressure: 125lbs
  • 210lbs at 1.110 inch
  • Coil Bind: 1.050 inch